Wedge-shaped rapid clamping tool

Abstract

The utility model discloses a wedge-shaped rapid clamping tool which comprises a guide wedge block and a jacking wedge block and further comprises a fixing table, the mutual contact face of the guide wedge block and the jacking wedge block forms an inclined face which is arranged in an inclined mode, and the guide wedge block and the jacking wedge block slide along the inclined face. The guide wedge block and the jacking wedge block form a whole through a connecting structure, and the connecting structure forms driving force for driving the jacking wedge block to slide relative to the guide wedge block. The clamping tool is simple in structure and easy to manufacture; the tool is high in flexibility and can be freely combined for use; the size range of parts clamped by the tool is large, and the position of the tool can be adjusted at any time according to the appearance size of the parts; the tool is convenient to operate, a tedious clamping process is not needed, and the clamping efficiency is improved. The tool is convenient to operate, a tedious clamping process is not needed, and the clamping efficiency is improved. According to the improved rapid clamping tool, the jacking wedge block can be prevented from generating rotating torque in the jacking process in the clamping process, and therefore the situation that the jacking wedge block abrades the surface of a workpiece can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping tools, and particularly relates to a wedge-shaped quick clamping tooling. Background Art

[0002] The clamping tools we commonly use are generally flat-jaw pliers and three-jaw chucks. However, such clamping tools can only clamp parts with regular shapes, and it is necessary to fix tools such as flat-jaw pliers and three-jaw chucks on the equipment workbench. The fixing method is relatively cumbersome and requires multiple bolts, nuts, pressing plates, etc. Clamping and disassembly are both time-consuming and laborious.

[0003] In addition, there are also methods of using a top block to determine the position and fixing with a pressing plate, using a general pore platform tooling for clamping and positioning, and using a special tooling and a vise for clamping and positioning. The general pore platform tooling is generally only applicable to rough machining when there are corresponding pressing holes on the blank or for finish machining; the design and production cycle of the special tooling is long, and it is not universal, cannot meet different production requirements, and is not suitable for rough machining; the vise is only applicable to small and simple structural parts with small cutting force during machining. Therefore, the clamping method during rough machining usually selects using a top block to determine the position and fixing with a pressing plate.

[0004] Moreover, the top blocks used in current production often become loose and slip during the clamping process, resulting in the failure of part clamping, generating quality and safety hazards, and causing physical quality failures.

[0005] In view of the above, it is necessary to propose a wedge-shaped quick clamping tooling to solve the above problems. Summary of the Utility Model

[0006] The purpose of the utility model is to overcome the defects existing in the prior art and provide a wedge-shaped quick clamping tooling.

[0007] To achieve the above purpose, the technical solution of the utility model is as follows: A wedge-shaped quick clamping tooling includes a guiding wedge block and a jacking wedge block, and also includes a fixed table. The guiding wedge block is adjustably installed on the fixed table. The mutually contacting surfaces of the guiding wedge block and the jacking wedge block form an inclined plane, and the guiding wedge block and the jacking wedge block slide along the inclined plane; the guiding wedge block and the jacking wedge block form an integral body through a connecting structure, and the connecting structure forms a driving force for driving the jacking wedge block to slide relative to the guiding wedge block.

[0008] Further, a plurality of T-shaped channels are arranged in parallel on the fixed table. The wedge-shaped quick clamping tooling further includes a T-shaped nut. The T-shaped nut is slidably arranged in the T-shaped channel. The T-shaped nut is provided with a first threaded hole. One side of the guiding wedge block extends to be provided with a step plate. The step plate is provided with a through hole, and a fixing bolt that is screwed with the first threaded hole is arranged through the through hole, so that the guiding wedge block and the T-shaped nut are clamped and fixed on the T-shaped channel.

[0009] Further, a convex guide rail is provided on the inclined surface of the guiding wedge block, the extending direction of the convex guide rail is arranged parallel to the inclination direction of the inclined surface, a U-shaped channel is provided on the inclined surface of the jacking wedge block, and the U-shaped channel is matched with the convex guide rail.

[0010] Further, the connecting structure includes a second threaded hole, a through groove and a screw. The second threaded hole is opened on the convex guide rail in the vertical direction. The through groove is a through groove arranged in the jacking wedge block in the vertical direction. The through groove includes an upper sinking groove and a lower through hole. The bottom of the upper sinking groove is connected to set the lower through hole, so that the lower through hole penetrates through the U-shaped channel, and the horizontal area of the upper sinking groove is larger than the horizontal area of the lower through hole. The screw passes through the through groove from top to bottom and is screwed into the second threaded hole.

[0011] Further, the guiding wedge block includes a fixed block and a lifting block. The mutually attached side of the fixed block and the lifting block is a vertical surface, and the lifting block moves up and down along the vertical surface relative to the fixed block; the side of the lifting block away from the fixed block is an inclined surface, and the slope direction of the inclined surface faces obliquely downward; the inclined surface direction of the jacking wedge block faces obliquely upward, and the two inclined surfaces are attached to each other.

[0012] Further, the connecting structure includes a T-shaped connecting piece. The T-shaped connecting piece includes a horizontal rod and a vertical rod. The vertical rod is vertically and fixedly arranged in the middle of the horizontal rod. Guide holes for inserting the end parts of the horizontal rod are provided on the mutually close sides of the fixed block and the jacking wedge block, and an avoidance groove is provided on the lower end surface of the lifting block.

[0013] Further, a through hole is provided in the lifting block in the vertical direction, the vertical rod passes upward through the through hole, and a threaded portion is formed at the upper end of the vertical rod, and a pressing nut is provided to cooperate with the threaded portion.

[0014] Further, strip-shaped ribs are convexly provided at the bottom of the jacking wedge block, and the strip-shaped ribs are matched with the T-shaped channel for defining the moving direction of the jacking wedge block.

[0015] Further, a bottom clamping end extends forward from the lower side of the front end of the jacking wedge block, and the bottom clamping end and the upper end surface of the jacking wedge block are transitioned through an arc surface.

[0016] The advantages and beneficial effects of the utility model are as follows: the clamping tooling structure is simple and easy to manufacture; the tooling has high flexibility and can be used in any combination; the size range of the parts clamped by the tooling is large, and the position of the tooling can be adjusted at any time according to the shape and size of the parts; the tooling is convenient to operate, without complicated clamping processes, and the clamping efficiency is improved. The improved quick clamping tooling can avoid the rotation torque of the jacking wedge block during the jacking process during the clamping process, so as to avoid the wear of the jacking wedge block on the surface of the workpiece. Description of the Drawings

[0017] Figure 1 It is a structural schematic diagram of a wedge-shaped quick clamping tooling of the utility model;

[0018] Figure 2 It is a schematic diagram of a wedge-shaped quick clamping tool for clamping a workpiece in the utility model;

[0019] Figure 3 is a schematic diagram of the guide wedge structure;

[0020] Figure 4 Schematic diagram of the jacking wedge structure Figure 1 ;

[0021] Figure 5 Schematic diagram of the jacking wedge structure Figure 2 ;

[0022] Figure 6 It is a schematic diagram of the structure of a trapezoidal nut;

[0023] Figure 7 This is a schematic diagram of the lifting block at the top dead center in the second embodiment of the utility model;

[0024] Figure 8 This is a schematic diagram of the lifting block at the bottom dead center in the second embodiment of the utility model;

[0025] Figure 9 It is an exploded view of the second embodiment of the utility model;

[0026] Figure 10 It is a longitudinal cross-sectional schematic diagram of the second embodiment of the utility model;

[0027] In the figure: 1. guide wedge; 2. jacking wedge; 3. fixing table; 4. inclined surface; 5. connecting structure; 6. T-shaped groove; 7. T-shaped nut; 8. first threaded hole; 9. step plate; 10. through hole; 11. fixing bolt; 12. raised guide rail; 13. U-shaped groove; 14. second threaded hole; 15. through groove; 16. screw; 17. upper sink groove; 18. lower through hole; 19. fixing block; 20. lifting block; 21. vertical surface; 22. T-shaped connector; 23. horizontal rod; 24. vertical rod; 25. guide hole; 26. avoidance groove; 27. through hole; 28. threaded portion; 29. ​​clamping nut; 30. strip rib; 31. clamping end; 32. arc surface; 33. workpiece. DETAILED DESCRIPTION

[0028] The following is a further description of the specific implementation of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0029] Embodiment 1:

[0030] A wedge-shaped quick clamping tooling, as Figure 1-6 shown, includes a guiding wedge block 1, a jacking wedge block 2, and also includes a fixed table 3. The guiding wedge block 1 is adjustably installed on the fixed table 3, as Figure 2 shown. A plurality of T-shaped channels 6 are arranged in parallel on the fixed table 3, and the quick clamping tooling is fixed on its plane through the T-shaped channels 6, and multiple quick clamping toolings can be installed according to needs, as Figure 2 shown. Two quick clamping toolings are relatively installed on both sides of the workpiece 33 respectively, and the workpiece 33 is relatively clamped and fixed. Further, the wedge-shaped quick clamping tooling also includes a T-shaped nut 7, as Figure 6 shown. The T-shaped nut 7 is slidably arranged in the T-shaped channel 6. A first threaded hole 8 is provided on the T-shaped nut 7. A step plate 9 extends from one side of the guiding wedge block 1, and a through hole 10 is provided on the step plate 9. A fixing bolt 11 that is threadedly connected to the first threaded hole 8 is passed through the through hole 10, so that the guiding wedge block 1 and the T-shaped nut 7 are clamped and fixed on the T-shaped channel 6. As Figure 1 shown, the guiding wedge block 1 and the T-shaped nut 7 are first pre-connected together by the fixing bolt 11, then the T-shaped nut 7 is inserted into one end of the T-shaped channel 6, and the entire tooling is moved from the upper side of the fixed table 3 towards the workpiece 33. When moving and approaching the workpiece 33, the fixing bolt 11 is tightened, so as to firmly install the tooling on the fixed table 3.

[0031] Specifically, the mutually contacting surfaces of the guiding wedge block 1 and the jacking wedge block 2 in the quick clamping tooling form an inclined surface 4 that is inclined. And the guiding wedge block 1 and the jacking wedge block 2 slide along the inclined surface 4. As Figure 3 shown, the inclined surface 4 of the guiding wedge block 1 is inclined upwards, while relatively, as Figure 4 shown, the inclined surface 4 of the jacking wedge block 2 is inclined downwards; it can be understood that, as Figure 1 shown, before clamping the workpiece 33, the jacking wedge block 2 is located on the upper side of the inclined surface 4. When it is necessary to tighten the workpiece 33, the jacking wedge block 2 is pressed down, so that it slides along the inclined surface 4, and under the guidance of the inclined surface 4, the jacking wedge block 2 gradually jacks into the surface of the workpiece 33. In order to prevent the jacking wedge block 2 from being misaligned with the guiding wedge block 1 during sliding, specifically, as Figure 3-5 shown, a convex guide rail 12 is provided on the inclined surface 4 of the guiding wedge block 1. The extending direction of the convex guide rail 12 is arranged parallel to the inclination direction of the inclined surface 4. A U-shaped channel 13 is provided on the inclined surface 4 of the jacking wedge block 2. The U-shaped channel 13 is matched with the convex guide rail 12. During sliding, with the cooperation of the convex guide rail 12 and the U-shaped channel 13, the jacking wedge block 2 can be prevented from moving laterally.

[0032] Further, the guiding wedge block 1 and the pressing wedge block form an integral whole through the connecting structure 5, and the connecting structure 5 forms a driving force for driving the advancing wedge block 2 to slide relative to the guiding wedge block 1. Specifically, the connecting structure 5 includes a second threaded hole 14, a through groove 15, and a screw 16. As Figure 3 shown, the second threaded hole 14 is vertically formed in the convex guide rail 12, as Figure 4 , 5 shown. The through groove 15 is a through groove 15 vertically arranged in the advancing wedge block 2. The through groove 15 includes an upper sinking groove 17 and a lower through hole 18. The bottom of the upper sinking groove 17 is connected to the lower through hole 18. The upper sinking groove 17 is a sinking groove arranged on the upper end surface of the advancing wedge block 2. The lower through hole 18 penetrates downward to the inclined surface 4 at its bottom to form the through groove 15, so that the lower through hole 18 penetrates through the U-shaped channel 13. And the horizontal area of the upper sinking groove 17 is larger than the horizontal area of the lower through hole 18. The screw 16 passes through the through groove 15 from top to bottom and is screwed into the second threaded hole 14. In actual use, when the screw 16 is tightened, a downward pressure is applied to the advancing wedge block 2 through the screw 16, so as to drive it to slide downward along the inclined surface 4 and clamp the workpiece 33.

[0033] Further, a bottom clamping end 31 extends forward from the lower front side of the advancing wedge block 2, and the bottom clamping end 31 and the upper end surface of the advancing wedge block 2 are transitioned through an arc surface 32. As Figure 2 shown, in this embodiment, through the arrangement of the clamping end 31, the lower part of the workpiece 33 can be clamped, so that it is convenient to perform turning processing on the lower part of the workpiece 33 after clamping. And through the transition of the arc surface 32, enough machining space can be vacated around the workpiece 33, which is convenient for subsequent machining of the workpiece 33.

[0034] Embodiment 2:

[0035] As Figure 1 shown, in Embodiment 1, before clamping the workpiece 33, the advancing wedge block 2 is located at the upper dead center. At this time, there is a certain distance between the lower end surface of the advancing wedge block 2 and the fixed table 3. When the screw 16 is tightened, the advancing wedge block 2 is driven to slide downward, and the clamping end 31 contacts the surface of the workpiece 33. At this time, there is still a certain distance between the lower end surface of the advancing wedge block 2 and the fixed table 3. And in order to maintain a certain clamping force, the screw 16 needs to be further tightened. Since the screw 16 is at a certain distance from the clamping end 31, when the advancing wedge block 2 is further pressed downward, the advancing wedge block 2 will take the clamping end 31 in contact with the workpiece 33 as the center, and a rotational torque is applied to the advancing wedge block 2 by the screw 16, so that the tooling appears inclined clamping, which is likely to cause an accident of clamping failure during the subsequent machining of the workpiece 33.

[0036] As an improvement, specifically, as Figure 7-10As shown in the figure, in this embodiment, the guiding wedge block 1 includes a fixed block 19 and a lifting block 20. One side of the fixed block 19 and the lifting block 20 that are in mutual contact is a vertical surface 21, and the opposite side is an inclined surface 4. The lifting block 20 moves up and down along the vertical surface 21 relative to the fixed block 19; one side of the lifting block 20 away from the fixed block 19 is an inclined surface 4. In this embodiment, the slope direction of the inclined surface 4 of the lifting block 20 faces obliquely downward; then the inclined surface 4 of the jacking wedge block 2 faces obliquely upward, and the two inclined surfaces 4 are arranged in contact with each other.

[0037] In this embodiment, the connecting structure 5 includes a T-shaped connecting piece 22, as Figure 9 shown, the T-shaped connecting piece 22 includes a horizontal rod 23 and a vertical rod 24. The vertical rod 24 is vertically and fixedly arranged in the middle of the horizontal rod 23, as Figure 10 shown, guiding holes 25 for inserting the ends of the horizontal rod 23 are provided on both sides of the fixed block 19 and the jacking wedge block that are close to each other. An avoidance groove 26 is provided on the lower end surface of the lifting block 20. During use, the two ends of the horizontal rod 23 are inserted into the jacking wedge blocks and the fixed block 19 at both ends. On one side, the two can be connected as a whole, and on the other hand, it can guide the forward movement of the jacking wedge block 2, and on the other side, it can provide a basis for the setting of the vertical rod 24 and provide a source of downward pressure for the lifting block 20.

[0038] Furthermore, a through hole 27 is provided in the lifting block 20 in the vertical direction, and the vertical rod 24 passes upward through the through hole 27. A threaded portion 28 is formed at the upper end of the vertical rod 24, and a compression nut 29 is provided to cooperate with the threaded portion 28. During actual use, the lifting block 20 is installed between the jacking wedge block 2 and the fixed block 19. When the lifting block 20 is pressed downward, the jacking wedge block 2 can be pushed out through the mutually acting inclined surfaces 4. It can be understood that in this embodiment, the bottom surface of the jacking wedge block 2 always fits on the surface of the fixed table 3, so that pressure is applied to the surface of the workpiece 33 during clamping, and the jacking wedge block 2 will not generate a rotational torque, thus making the clamping more stable. Further, a strip-shaped rib 30 is convexly provided at the bottom of the jacking wedge block 2, and the strip-shaped rib 30 cooperates with the T-shaped channel 6 to limit the moving direction of the jacking wedge block 2. As Figure 9-10 shown, in order to prevent the lifting block 20 from interfering with the horizontal rod 23 during the downward movement, an avoidance groove 26 that runs through longitudinally is provided, so that the lifting block 20 can reach the lowest point.

[0039] The above is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A wedge-shaped quick clamping tool, characterized in that: The invention comprises a guide wedge (1), a jacking wedge (2), and a fixed platform (3), wherein the guide wedge (1) is adjustably mounted on the fixed platform (3), the contact surfaces of the guide wedge (1) and the jacking wedge (2) form an inclined surface (4), and the guide wedge (1) and the jacking wedge (2) slide along the inclined surface (4); the guide wedge (1) and the jacking wedge are integrally formed by a connecting structure (5), and the connecting structure (5) forms a driving force for driving the jacking wedge (2) to slide relative to the guide wedge (1).

2. A wedge-shaped quick-clamping tool according to claim 1, characterized in that: A plurality of T-shaped grooves (6) are arranged in parallel on the fixing platform (3), and the wedge-shaped quick clamping tool further comprises a T-shaped nut (7), the T-shaped nut (7) is slidably arranged in the T-shaped groove (6), and the T-shaped nut (7) is provided with a first threaded hole (8), and a step plate (9) is extended on one side of the guide wedge block (1), and the step plate (9) is provided with a through hole (10), and a fixing bolt (11) is provided through the through hole (10) and is screwed to the first threaded hole (8), so that the guide wedge block (1) and the T-shaped nut (7) are clamped and fixed on the T-shaped groove (6).

3. A wedge-shaped quick-clamping tool according to claim 1, characterized in that: The inclined surface (4) of the guide wedge block (1) is provided with a raised guide rail (12), and the extending direction of the raised guide rail (12) is arranged parallel to the inclination direction of the inclined surface (4). The inclined surface (4) of the jacking wedge block (2) is provided with a U-shaped groove (13), and the U-shaped groove (13) cooperates with the raised guide rail (12).

4. A wedge-shaped quick-clamping tool according to claim 3, characterized in that: The connection structure (5) comprises a second threaded hole (14), a through groove (15), and a screw (16). The second threaded hole (14) is formed on the raised guide rail (12) along the vertical direction. The through groove (15) is a through groove (15) provided in the jacking wedge block (2) along the vertical direction. The through groove (15) comprises an upper recessed groove (17) and a lower through hole (18). The lower through hole (18) is provided at the bottom of the upper recessed groove (17) so that the lower through hole (18) passes through the U-shaped channel (13). The horizontal area of ​​the upper recessed groove (17) is larger than the horizontal area of ​​the lower through hole (18). The screw (16) passes through the through groove (15) from top to bottom and is screwed into the second threaded hole (14).

5. A wedge-shaped quick-clamping tool according to claim 2, characterized in that: The guide wedge block (1) comprises a fixed block (19) and a lifting block (20); one side of the fixed block (19) and the lifting block (20) being in contact with each other is a vertical surface (21); the lifting block (20) is movable up and down along the vertical surface (21) relative to the fixed block (19); the side of the lifting block (20) away from the fixed block (19) is an inclined surface (4); the inclined surface (4) is oriented obliquely downward; the inclined surface (4) of the jacking wedge block (2) is oriented obliquely upward, and the two inclined surfaces (4) are arranged in contact with each other.

6. A wedge-shaped quick-clamping tool according to claim 5, characterized in that: The connection structure (5) comprises a T-shaped connection piece (22), the T-shaped connection piece (22) comprises a horizontal rod (23) and a vertical rod (24), the vertical rod (24) is vertically fixedly arranged in the middle of the horizontal rod (23), the fixing block (19) and the tightening wedge block are provided with a guide hole (25) for inserting the end of the horizontal rod (23) on one side close to each other, and the lower end surface of the lifting block (20) is provided with an avoidance groove (26).

7. A wedge-shaped quick-clamping tool according to claim 6, characterized in that: A through hole (27) is provided in the lifting block (20) along the vertical direction, and the vertical rod (24) extends upward through the through hole (27). A threaded portion (28) is formed at the upper end of the vertical rod (24), and a clamping nut (29) is provided in cooperation with the threaded portion (28).

8. The wedge-shaped quick-clamping tool according to claim 5, characterized in that: The bottom protrusion of the jacking wedge (2) is provided with strip-shaped ribs (30), and the strip-shaped ribs (30) cooperate with the T-shaped groove (6) to limit the moving direction of the jacking wedge (2).

9. The wedge-shaped quick-clamping tool according to claim 1, characterized in that: The lower side of the front end of the jacking wedge (2) extends toward the front end to form a bottom clamping end (31), and a curved surface (32) transitions between the bottom clamping end (31) and the upper end surface of the jacking wedge (2).

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